Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 5549b3663c5d3904eab780389cd14c58523d1dfa
https://github.com/WebKit/WebKit/commit/5549b3663c5d3904eab780389cd14c58523d1dfa
Author: Per Arne Vollan <[email protected]>
Date: 2026-08-25 (Tue, 25 Aug 2026)
Changed paths:
A
LayoutTests/fast/html/trusted-types-set-attribute-iframe-removal-crash-expected.txt
A
LayoutTests/fast/html/trusted-types-set-attribute-iframe-removal-crash.html
M Source/WebCore/dom/Attr.cpp
Log Message:
-----------
Use-after-free of ScriptExecutionContext in trustedTypeCompliantString
https://bugs.webkit.org/show_bug.cgi?id=317320
rdar://177766868
Reviewed by Chris Dumez.
The method processValueWithDefaultPolicy can end up deleting the
ScriptExecutionContext passed as parameter.
This patch fixes this by adding protection of ScriptExecutionContext.
Test: fast/html/trusted-types-set-attribute-iframe-removal-crash.html
* LayoutTests/fast/html/trusted-types-set-attribute-iframe-removal-crash.html:
Added.
*
LayoutTests/fast/html/trusted-types-set-attribute-iframe-removal-crash-expected.txt:
Added.
* Source/WebCore/dom/Attr.cpp:
(WebCore::Attr::setValue):
* Source/WebCore/dom/Element.cpp:
(WebCore::Element::setAttribute):
(WebCore::Element::setAttributeNode):
(WebCore::Element::setAttributeNodeNS):
(WebCore::Element::setAttributeNS):
* Source/WebCore/dom/TrustedType.cpp:
(WebCore::trustedTypeCompliantString):
(WebCore::requireTrustedTypesForPreNavigationCheckPasses):
Originally-landed-as: [email protected] (a26cf8dc190a).
rdar://185368259
Canonical link: https://commits.webkit.org/319801@main
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